UBA20260T

600 V driver IC for step dimmable CFLs


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The UBA20260 is a high-voltage integrated circuit designed to control high power self-ballasted Compact Fluorescent Lamp (CFL) lighting applications. The UBA20260 is a controller circuit with advanced features for step dimming and a lamp current controlled boost feature for boosting cold (amalgam) CFLs. The controller contains a half-bridge drive function for CFLs, a high-voltage level-shift circuit with integrated bootstrap diode, an oscillator function, a current control function for preheat and burn, a timer function and protection circuits. The UBA20260 is supplied using the dV/dt current charge supply circuit from the half-bridge circuit.

Features and benefits

  • Integrated high-voltage level-shift function with integrated bootstrap diode
  • Coil saturation protection during ignition
  • Adjustable preheat time
  • Adjustable preheat current
  • Ignition lamp current detection
  • Adjustable boost timing
  • Fixed boost current ratio of 1.5
  • Gradually boost to burn transition timing
  • 4-level step dimming adjustment using a standard on/off mains switch
  • Adjustable memory retention time for step dimming
  • Adjustable minimum dimming level
  • OverTemperature Protection (OTP)
  • Capacitive Mode Protection (CMP)
  • OverPower Protection (OPP)
  • OverCurrent Protection (OCP) in both boost and burn state
  • Current controlled operation in both boost and burn state
  • External power-down function

Applications

  • Step-dimmable CFL lamps above 20 W and for universal mains voltages
All information on this product information page is subject to the subsequent disclaimers:
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Show functional diagram

Block diagram
Block diagram

Demo boards

UBA20260DB01UBA20260DB01

UBA20260DB01 23 W 120 V Step-dimming CFL reference design

UBA20260DB02UBA20260DB02

UBA20260DB02 23 W 230 V Step-dimming CFL reference design


Parametrics of this product

SymbolParameterConditionsMinTyp/NomMaxUnit
VHBOvoltage on pin HBOduring 1 s600V
VHBOvoltage on pin HBOoperating500V
VDDsupply voltage14V
Tjjunction temperature-40150°C
Plamplamp power150W
Vmainsmains voltage120230V

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
UBA20260T/1UBA20260T/1,5189352 953 22518Volume productionSOT109-1
(SO16) 		Reel Dry Pack, SMD, 13"Standard Marking

Pinning information

PinSymbolDescriptionSimplified outlineGraphic symbol
1SLSsource low-sidePin configuration (SOT109-1)SOT109-1
2GLSgate driver output
3PGNDpower ground
4VDDlow voltage supply
5RREFinternal reference current input
6CFvoltage controlled oscillator capacitor
7MDLminimum dimming level input
8CIvoltage controlled oscillator input integrating capacitor
9CSIcurrent feedback sense input
10n.c.not connected
11CPpreheat timing capacitor
12CBboost timing capacitor
13SGNDsignal ground
14FSfloating supply voltage
15HBOhalf-bridge output
16GHShigh-side gate driver output

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
UBA20260T/1UBA20260T/1,518UBA20260T/1Always Pb-free33
Quality and reliability disclaimer

Quality and reliability disclaimer

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NXP Semiconductors is providing this data for your convenience only. Please note however that NO WARRANTY, REPRESENTATION, GUARANTEE OR LEGALLY BINDING PRODUCT DESCRIPTION is provided by publishing this informational data, nor does NXP Semiconductors acknowledge or accept any liability related thereto. The documentation and data on NXP Semiconductors products can be found in the data sheets as officially published by NXP Semiconductors. For all purchase of products from NXP Semiconductors the NXP Semiconductors' General Terms and Conditions of Commercial Sale will apply.

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Documentation for this product

TypeFormatTitleDate
Data sheetpdf600 V and 350 V power IC for step dimmable CFLs (v.2.0)2011-10-10
Application notepdfSMPS EMC and layout guidlines (v.1.0)2011-02-18
Application notepdfTriac dimmable CFL application using the UBA2028/UBA2014/UBA2027x (v.2.0)2012-02-27
Application notepdfDimmable CFL using the UBA2026X family (v.1.0)2012-04-04
LeafletpdfNXP GreenChip lighting driver ICs UBA2026x and UBA2027x (v.1.0)2012-01-30
LogogifGreenChip logo (v.1.0)2012-04-20
ReportpdfSmart lighting: A bright idea whose time has come (v.1.0)2011-12-20
User manualpdf230 V and 120 V reference design using UBA20260 (v.1.0)2011-09-30

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
UBA20260T/19352 953 22518UBA20260T/1,518NADIGI-KEY CORPORATION5,0005/23/2012Buy online 
   NAFUTURE ELECTRONICS205/22/2012Buy online 
   EUFUTURE ELECTRONICS UK205/22/2012Buy online 
   ASIAFUTURE ELECTRONICS- ASIA205/22/2012Buy online 

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Demo boards

UBA20260DB01
UBA20260DB01

UBA20260DB01 23 W 120 V Step-dimming CFL reference design

UBA20260DB02
UBA20260DB02

UBA20260DB02 23 W 230 V Step-dimming CFL reference design

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